C Specification

Parameters

Specifies the target to which the buffer object is bound
for glGetBufferPointerv, which must
be one of the buffer binding targets in the following
table:

Buffer Binding Target

Purpose

GL_ARRAY_BUFFER

Vertex attributes

GL_ATOMIC_COUNTER_BUFFER

Atomic counter storage

GL_COPY_READ_BUFFER

Buffer copy source

GL_COPY_WRITE_BUFFER

Buffer copy destination

GL_DISPATCH_INDIRECT_BUFFER

Indirect compute dispatch commands

GL_DRAW_INDIRECT_BUFFER

Indirect command arguments

GL_ELEMENT_ARRAY_BUFFER

Vertex array indices

GL_PIXEL_PACK_BUFFER

Pixel read target

GL_PIXEL_UNPACK_BUFFER

Texture data source

GL_QUERY_BUFFER

Query result buffer

GL_SHADER_STORAGE_BUFFER

Read-write storage for shaders

GL_TEXTURE_BUFFER

Texture data buffer

GL_TRANSFORM_FEEDBACK_BUFFER

Transform feedback buffer

GL_UNIFORM_BUFFER

Uniform block storage

buffer

Specifies the name of the buffer object for
glGetNamedBufferPointerv.

pname

Specifies the name of the pointer to be returned. Must
be GL_BUFFER_MAP_POINTER.

params

Returns the pointer value specified by
pname.

Description

glGetBufferPointerv and
glGetNamedBufferPointerv return the buffer
pointer pname, which must be
GL_BUFFER_MAP_POINTER. The single buffer
map pointer is returned in params. A
NULL pointer is returned if the buffer
object's data store is not currently mapped; or if the
requesting context did not map the buffer object's data store,
and the implementation is unable to support mappings on multiple
clients.

Notes

If an error is generated, no change is made to the contents of
params.

The initial value for the pointer is NULL.

The GL_ATOMIC_COUNTER_BUFFER target is
available only if the GL version is 4.2 or greater.

The GL_DISPATCH_INDIRECT_BUFFER and
GL_SHADER_STORAGE_BUFFER targets are
available only if the GL version is 4.3 or greater.

The GL_QUERY_BUFFER target is available
only if the GL version is 4.4 or greater.

Errors

GL_INVALID_ENUM is generated if by
glGetBufferPointerv if
target is not one of the accepted buffer
targets, or if pname is not
GL_BUFFER_MAP_POINTER.

GL_INVALID_OPERATION is generated by
glGetBufferPointerv if zero is bound to
target.

GL_INVALID_OPERATION is generated by
glGetNamedBufferPointerv if
buffer is not the name of an existing
buffer object.